Finding the Fourth Proportional to 8,757.14, 12,076.98 and 5,612.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,757.14 : 12,076.98 = 5,612.72 : x
2. Step 2: Convert to fraction form
   8,757.14/12,076.98 = 5,612.72/x
3. Step 3: Cross multiply
   8,757.14x = 12,076.98 × 5,612.72
4. Step 4: Simplify right side
   8,757.14x = 67,784,707.19
5. Step 5: Solve for x
   x = 67,784,707.19/8,757.14
6. Step 6: Final answer
   x = 7,740.51